Pipe spacing mold



Aug. 27, 1940. T MAN 2,212,974

PIPE SPACING MOLD Filed March 3, 1937 amen WM Patented Aug. 27, 1940UNITED STATES PATENT OFFICE PIPE SPAOING MOLD Application March 3, 1937,Serial No. 128,869

Claims.

The present invention relates to molds used in concrete buildingconstruction for the purpose of providing openings in the concrete floorwhile the concrete is being poured for accommodating 5 pipes, such asthe drain or soil pipe of bathroom plumbing.

An object of the present invention is to provide a mold of thischaracter adapted to be placed about a pipe elbow projecting through afloor, and embodying a spacing sleeve within the mold for positioningthe pipe concentrically and in spaced relation with respect to the wallsof the opening after the concrete has set and the mold removed in orderthat the pipe will be free from the concrete for the purpose ofreplacement, when desired without necessitating drilling or breaking ofthe concrete.

Another object is to provide a mold of this character which will enablethe spacing of the soil pipe from the concrete sufiiciently to permitthe attaching of the closet flange in a quick and convenient manner tothe closet bend or soil pipe.

A further object is to provide a mold of this character of simple andpractical construction,

which may be easily and quickly placed in position and removed from theopening, relatively inexpensive to manufacture and otherwise welladapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawing forming part hereof, wherein likenumerals refer to like parts throughout, and in which Fig. 1 is a bottomplan view of the mold and Fig. 2 is a vertical sectional view.

Referring now to the drawing in detail, wherein for the purpose ofillustration I have disclosed a preferred embodiment of the invention,the numeral 5 designates a sleeve of relatively heavy gauge sheet metal,which is split longitudinally and having its split edges bent inwardlyin spaced relation from the inner walls of the sleeve to form channels 6for receiving inturned flanges 1 on a slidable locking key 8, the upperend of which is provided with an angular finger grip 9 to facilitateinsertion and removal of the key for collapsing the sleeve when desired.

The sleeve is positioned about a pipe Hi to prevent contact of the pipewith the concrete floor II as the concrete is poured, the sleeve.extending entirely through the floor and in the form of constructionillustrated in the drawing the lower edge of the sleeve is provided withan armate notch I2 for seating on the inside of the elbow l3 of the pipeto properly support the sleeve in concentric position about theupstanding end of the pipe. The lower end of the sleeve is formed with atapered edge Hi to support a cor- 5 rugated spacing sleeve l5 within theouter sleeve 5 between the pipe and the outer sleeve to space the pipefrom, the walls of the opening formed in the floor after the mold hasbeen removed. The spacing sleeve I5 is formed of sheet metal with 10 itsends positioned in overlapping relation as shown at I6 and securedtogether by striking o ut tongues I6 from one overlapped end and passingthe same through openings in the other overlapped end and bending thetongues to pre- 15 vent removal thereof. The upper edge of the outersleeve is provided with a plurality of spaced outwardly extending lugsI! for engagement by tongues I8 struck out from the under side of acover or cap I 9 to releasably secure the cap in 20 position on thesleeve by a partial rotary movement of the cap. The central portion ofthe upper surface of the cap is pressed inwardly as shown at 20 toreinforce and strengthen the cap, the walls of the depression alsofitting snugly 25 within the pipe III to center the pipe within themold. The cap and mold completely enclose the open end of the pipe l0and prevent entrance of trash or particles of concrete during pouringthereof while the building is under construction 30 and until the closetflange has been set and connected to the'pipe.

In removing the mold the cap is first removed and the spacing sleevewithdrawn by inserting a hook (not shown) of conventional construction35 under the lower edge of the sleeve and pulling the same out. The key8 may then be removed to collapse the outer sleeve 5.

From the foregoing it is believed the details of construction andoperation of the device will be 40 readily understood by those skilledin the art, without further explanation.

Having thus described the invention, what I claim is:

1. A pipe spacing mold of the class described 45 comprising acollapsible outer sleeve having a tapered lower edge, and a rigidspacing sleeve supported upon the tapered edge within the outer sleeve,said sleeves being adapted to surround a pipe and cooperating to spacethe pipe from con- 50 crete while the concrete is being poured aroundthe pipe.

2. A pipe spacing mold of the class described comprising a collapsibleouter sleeve having a tapered lower edge, a spacing sleeve supported 55upon the tapered edge within the outer sleeve,

the concrete is being poured around the pipe. lugs projecting outwardlyi'rcm the upper edge or the outer sleeve, a cap, tongues struck out fromthe under side of the cap engaging the lugs to releasably secure the capto the sleeve and an inwardly extending formation on the cap positionedto engage the walls of the pipeto center the mold about the pipe.

3. A pipe spacing mold of the class described comprising a tubularmember adapted to surround a pipe, means (or spacing the tubular memberfrom the pipe, a removable cap closing one end of the tubular member anda formation on the inner side oi the cap adapted to enter and havingwedging engagement with an adiacent end of said last-men the pipe forsecuring the tubular member in fixed position with respectto the pipe.

the sleeve and a removable cap secured to the' sleeve tor closing oneend thereof and supporting the sleeve on an open end of the pipe whenthe sleeve is placed in position thereon.

JOSEPH L. BATEMAN.

